drm/nouveau/secboot: store ucode offset in base image structure

This allows the bootloader descriptor generation code to not rely on
specialized ls_ucode_img structures, making it reusable in other
instances.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c

@@ -95,15 +95,14 @@ struct acr_r352_flcn_bl_desc {
  */
 static void
 acr_r352_generate_flcn_bl_desc(const struct nvkm_acr *acr,
-			       const struct ls_ucode_img *_img, u64 wpr_addr,
+			       const struct ls_ucode_img *img, u64 wpr_addr,
 			       void *_desc)
 {
-	struct ls_ucode_img_r352 *img = ls_ucode_img_r352(_img);
 	struct acr_r352_flcn_bl_desc *desc = _desc;
-	const struct ls_ucode_img_desc *pdesc = &_img->ucode_desc;
+	const struct ls_ucode_img_desc *pdesc = &img->ucode_desc;
 	u64 base, addr_code, addr_data;
 
-	base = wpr_addr + img->lsb_header.ucode_off + pdesc->app_start_offset;
+	base = wpr_addr + img->ucode_off + pdesc->app_start_offset;
 	addr_code = (base + pdesc->app_resident_code_offset) >> 8;
 	addr_data = (base + pdesc->app_resident_data_offset) >> 8;
 
@@ -255,7 +254,7 @@ acr_r352_ls_img_fill_headers(struct acr_r352 *acr,
 	 * image size
 	 */
 	offset = ALIGN(offset, LSF_UCODE_DATA_ALIGN);
-	lhdr->ucode_off = offset;
+	_img->ucode_off = lhdr->ucode_off = offset;
 	offset += _img->ucode_size;
 
 	/*

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r361.c

@@ -63,15 +63,14 @@ struct acr_r361_flcn_bl_desc {
 
 static void
 acr_r361_generate_flcn_bl_desc(const struct nvkm_acr *acr,
-			       const struct ls_ucode_img *_img, u64 wpr_addr,
+			       const struct ls_ucode_img *img, u64 wpr_addr,
 			       void *_desc)
 {
-	struct ls_ucode_img_r352 *img = ls_ucode_img_r352(_img);
 	struct acr_r361_flcn_bl_desc *desc = _desc;
-	const struct ls_ucode_img_desc *pdesc = &img->base.ucode_desc;
+	const struct ls_ucode_img_desc *pdesc = &img->ucode_desc;
 	u64 base, addr_code, addr_data;
 
-	base = wpr_addr + img->lsb_header.ucode_off + pdesc->app_start_offset;
+	base = wpr_addr + img->ucode_off + pdesc->app_start_offset;
 	addr_code = base + pdesc->app_resident_code_offset;
 	addr_data = base + pdesc->app_resident_data_offset;
 

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/ls_ucode.h

@@ -83,6 +83,7 @@ struct ls_ucode_img_desc {
  * @ucode_desc:		loaded or generated map of ucode_data
  * @ucode_data:		firmware payload (code and data)
  * @ucode_size:		size in bytes of data in ucode_data
+ * @ucode_off:		offset of the ucode in ucode_data
  * @sig:		signature for this firmware
  * @sig:size:		size of the signature in bytes
  *
@@ -97,6 +98,7 @@ struct ls_ucode_img {
 	struct ls_ucode_img_desc ucode_desc;
 	u8 *ucode_data;
 	u32 ucode_size;
+	u32 ucode_off;
 
 	u8 *sig;
 	u32 sig_size;